Inhaler



Patented May 22, 1928.

uNrr-ED STATES ALFRED, H. BRAEQKLEIN, or BALTIMQREXMRLAND, AssIeNoaY .MESNE ,ASSIGN- MENTS, To .T o saPH E, HINDES AND GEORGE ARNOLD ERICK, '1.2.Blnillll-S,'BOTH 0F BALTIMORE; MARYLAND- IINHALER- Application led April 9, 19275 Serial` No. @renewed-,October l10, 1927.

This invention relates to inhalers of the type disclosed iny my co-pending application' Numbered 2,0276, tiled January 12,1925.'-

An 4object of the present invention'is ,to improve and simplifyy the device 'disclosed 1n the said application, Without sacrificing any of its advantageous features and to provide positive meansv for administering an exact dose of chlorine gas in measured quantities at each treatment.

lVith the above and other objects in view, the invention further includes,theffollowing novel features and details of construction, to be hereinafter more fully described, Aillustratedin the accompanying drawings and pointedout in the appended claims.4

Figure 1 is a sectionalvizew partlyin elevation .showing an'inhalei constructed in accordance with the invention.

Figure 2 is a perspective View of the device with the mask removed.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference character 10 indicates a casing which while preferably made of glass, may be of other suitable material. This casing includes a hollow substantially cylindrical portion defining a mixing chamber 11, while extending from one end of and communicating with this chamber is a hollow extension 12 which is open at its outer end and which provides an air inlet passage 13. 'A hollow extension 14 projects from the opposite end of the chamber 11 and provides an outlet passage 15 which is open at its outer end and which is'in communication at its inner end with the chamber 11.

Extending downwardly from the top of the chamber 11 and spaced from the walls of the latter is a container 16. The Walls of this container are tapered and a similarly tapered plug 17 closes the upper end of the container. This plug is provided with a skirt 18 having an opening 19 therein and the latter is adapted to be moved into and out of register with an opening 20 provided in the walls of the container 16.y By rotating this plug, communication between the container 16 and the mixing chamber 11 may be controlled. The plug is provided with an operating knob 21 and with an indicator 22,

` the latter being adapted to cooperateiwith graaimmng api-@vided in the' 'top 'ofthe casing A10.l By' settingthe indicator' in accordance with .these graduations, the degree otopening-between the container 16 andthe mixing chamber' may be accurately regultedf. f. c,

The-czontainer is adapted 'to receive the chlorine gasfan'd in order to accurately'regu late the 'dosefthe gas is preferably sealed with an ampoule indicatedat'Qlfthe latter containing'a measured quantity' of the gas. This ampoule `'preferably weakenedl as indicated'at 25 so that'it maybe-'broken atthis point'andy placed within V"the container', An accurate dose f of -the gas is thus assured.

'Frictionally engaging :theextensiori 14 is a mask 26. This mask may 'consist of a paper cone oflfa suitable'character so that a separate mask-may besupplied for each paL tient if desired, or, they may be renewed when necessary. The masks may also be made of rubber and may be easily sterilized. Any suitable means may be provided for holding the mask in place, such as tapes or straps 27.

The mask is placed vover the nose and mouth of the patient,4 the inhalations drawing in to the mask a measured quantity of gas and air, the amount of gas being regulated by the adjustment of the plug 17, 0.015 milligrams per litre providing a proper concentration. The inhalations of the patient provide a backing up or whirling effect of the air and gas within the chamber 11 so that a thorough mixture is e'ected.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes yas properly fall Within the scope of the appended claims.

Having described the invention what is claimed is 1. An inhaling device comprising a cas-y ing, a mixing chamber included therein, an open top chamber located within and spaced from the walls of the mixing chamber and delining a container, said container having an opening in one Wall for communication with the mixing chamber, a plug for closing the top of the container, a skirt extending from the plug. said skirt having an opening therein adapted to be moved into and out of register With the first mentioned opening to control communication between the container and mixing chamber, an air inlet communicating With the mixing chamber, an outlet also communicating with said chamber and a mask communicating-With the mixing chamber through the outlet.

2. An inhaling device comprising a casing', a mixing chamber included therein, an open top chamber located Within and spaced from the Walls of the mixing chamber and defining a container, said container having an opening in one Wall for communication with the mixing chamber, a plugfor closing the top ofthe container. a skirt extending from the plug, said skirt having` an opening therein adapted to be moved into and out of register With the first mentioned opening to control con'nnunioation between the container and mixing chamber, hollow tubular extensions projecting from and communicating with the mixing chamber at the bottom thereof and providing an air inlet, an outlet passage extending from the mixing' chamber adjacent the top thereof and diametrically opposite lthe air inlet, and a mask surrounding the outer open end of the Outlet passage.

3. An inhaling device comprising a mixing chamber, a cylindrical container Within and spaced from the sides and bottom of said chamber, an air inlet at one side of and adjacent the bottom of said chamber, an outlet at the opposite side of and adjacent the top of said chamber, an opening intern'iediatetlie ends of said container in the side Wall thereof opposite said outlet and communicating with said chamben 1 el. An inhaling dcvice'comprising a mixingr chamber, a container Within and spaced from the sides and bottom ofsaid chamber, an air inlet at one side of said chamber. an

outletat the opposite side of said chamber,

an opening inthe side wall of said container opposite said outlet and eoimnunicating withl said chamber` said oj'icning being` substantially removed from the'bottom of said container. n

5. An inhaling device comprising aniixing chamber, a cylindrical container Within 

